package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApLikesBehaviorService;
import com.heima.common.constants.article.HotArticleConstants;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.LikesBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApLikesBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.mess.app.UpdateArticleMess;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;

import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.Date;

@Service
@Slf4j
public class ApLikesBehaviorServiceImpl implements ApLikesBehaviorService {
    @Autowired
    MongoTemplate mongoTemplate;
    @Autowired
    RabbitTemplate rabbitTemplate;
    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;
    @Override
    public ResponseResult like(LikesBehaviorDTO dto) {
        //1.校验参数
        ApUser user = AppThreadLocalUtils.getUser();
           if (user==null){
               CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST,"用户不存在");
           }
        //点赞需要登录
        //校验文章id不能为空
        String  articleId = String.valueOf(dto.getArticleId());
           if (StringUtils.isBlank(articleId)){
               CustException.cust(AppHttpCodeEnum.AP_USER_DATA_NOT_EXIST,"文章id不存在");
           }


        //2.根据当前登录id查询行为实体对象
        ApBehaviorEntry  behaviorEntry = apBehaviorEntryService.findByUserIdOrEquipmentId(user.getId(), dto.getEquipmentId());
           if ( behaviorEntry==null){
               CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST,"查询行为实体失败");
           }
        //3.如果是点赞操作 判断是否已经点过赞
        Query query = Query.query(Criteria.where("entryId").is( behaviorEntry.getId()).and("articleId").is(dto.getArticleId()));
        ApLikesBehavior likesBehavior = mongoTemplate.findOne(query, ApLikesBehavior.class);
        if (dto.getOperation().intValue() == 0 && likesBehavior !=null){
            CustException.cust(AppHttpCodeEnum.DATA_EXIST,"请勿重复点赞");
        }
        //4.没有点过赞操作 像mongo点赞集合中 添加点赞数据
        if (dto.getOperation()==0){
            // 点赞   添加点赞数据
            likesBehavior=new ApLikesBehavior();
            likesBehavior.setEntryId(behaviorEntry.getId());
            likesBehavior.setArticleId(dto.getArticleId());
            likesBehavior.setType((short) 0);
            likesBehavior.setOperation((short) 0);
            likesBehavior.setCreatedTime(new Date());
            mongoTemplate.save(likesBehavior);
        }else {
            //5.如果是取消点赞操作 在mongo点赞集合中 删除对应点赞数据
            mongoTemplate.remove(query,ApLikesBehavior.class);
        }
        UpdateArticleMess mess = new UpdateArticleMess();
        mess.setArticleId(dto.getArticleId());
        mess.setType(UpdateArticleMess.UpdateArticleType.LIKES);
        mess.setAdd(dto.getOperation()==0?1 :-1); //点赞加1 取消赞减1
        rabbitTemplate.convertAndSend(HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE, JSON.toJSONString(mess));
        log.info("点赞行为 发送消息 ==>{}",JSON.toJSONString(mess));
        return ResponseResult.okResult();
    }
}
